This script adds Quad Sphere in your standard primitives list.

You can modify radius and segments count.

Tested on 3ds Max 2013, 2019 and 2020

Version 1.1:

Added ability to set settings as default

Defaults are saving to *.ini file. So they will be loaded even if you restart 3ds max.

Installation:

Just put this script in your 3ds Max\scripts\Startup\ folder.